Low Octane tables please help!!!

[ssdungeon]

Someone please see if you can see why my car STAYS in the low octane tables.


These are the values at WOT
IAT - 84
ECT -188-190
Later in the run got to 192 (I have been contemplating the 160 Tstat)
On a regular driving run. not much KR at all maybe every now and then for a blip or two then nothing. I noticed at WOT at least 50% of the time I get 1-3.5 degrees of knock. Any other time it NEVER hits the high octane tables. I have run it down to 1 gal avail and filled up with 93... drove around for 15 minutes then l0gged. Same thing low timing tables.


OK I think I have a few runs uploaded. 01 Z, Ported TB, TB bypass, CATS!,3" ORY with Elect Cutout, EGR, LT headers, LID, K&N,

[SSpdDmon]

Did you try logging GM.ASPARK?

[ssdungeon]

Did you try logging GM.ASPARK?

Yes.
It never goes above 22 deg

mostly sticking around 17-20 durring WOT.

One thing I did today was finish removing the EGR stuff. There was a little hose left over that I plugged. Not sure if a little leak is enough to put me in the low octane tables.

Ill post up a file with a few WOTs and regular driving on my trip to Charlotte in the morning.

Anything else I should log to help ID the problem just let me know and Ill add the PID.

[GMPX]

No he means you need to log the PID that shows where the scaler is at for the interpolation between the High and Low Octane tables. Don't take the values you see as using one or the other, it always blends between the two tables (unless there is a problem with the MAF or knock sensors).

[whackem04]

so when the scaler is in the 90's and going up its in the high octane?
can you please explain.

[ssdungeon]

Ill be sure to log it. What should it be at WOT?

Did you try logging GM.ASPARK?

Thanks,

[SSpdDmon]

It should ideally be 100 all the time. KR will reduce the scaler.

[joecar]

Graphically:

See how when KR occurs (red circle), ASPARK drops from 100% (blue circle), and if KR stops then ASPARK slowly inches back up.

[whackem04]

so back to the original question, what does he need to do to get the high octane table back in the picture?

[ssdungeon]

But its still not right. Im seeing more knock than I should. My tuner pkg should be here next week but for now Im trying to narrow down whats causing this.

This was a few wots from a 2hr drive. I did get one or two runs with normal timing (when I stayed in the correct tables boy did she feel better 10 degrees of timing sure makes a helluva big difference). But it was out of about 12 runs. I jsut posted a few here. Excuse the wierd names typing with one hand and driving 80 down the interstate I just hit keys.

I learned something new with the scaler. Very useful PID when I can actually start tweaking the timing tables a bit.

I did notice my fuel trims were off seemed to be running a bit lean on one bank and the other was not registerring. This happened since my last runs and I did remove the EGR stuff completely yesterday. Ill double check to see if I knocked something loose but I doubt it.